Deve funcionar com um HDMI - > Adaptador DVI-D ( DIGITAL ), mas dê uma olhada no site da Intel:
What are the system requirements for Multiple Display support? Your computer must have the following:
Physical video output connector(s)
Your computer must have a video output connector or connectors to which one or more external displays would be connected to. Some laptops may have additional video output connectors on a docking station, port replicator, or via the laptop manufacturer’s special video cable. On desktop systems, some computer manufacturers may offer at an extra cost an add-in card (referred to as ADD2) which adds video output connector to the computer.
Two or more display devices are connected.
Display devices may include an analog monitor, notebook’s built-in display, external monitor or flat panel display with analog, DVI-D, DVI-I, HDMI*, or DisplayPort* connectors, or television with S-Video, Composite, Component, or D connectors. Not all display device combinations may be supported by your computer. Please check with your computer manufacturer for information on the supported multiple display configurations for your computer.
An Intel® graphics driver is installed.
The Intel graphics driver’s Properties control panel allows you to set a multiple display configuration. Not all multiple display configurations may be supported by your operating system or by your computer. Some examples include: The Starter Editions of Windows Vista* & Windows 7* do not support Extended Desktop mode; Many computer manufacturers disable the Twin mode. Please check with your computer manufacturer for information on available and supported multiple display configurations for your computer.
*** ATUALIZAÇÃO:
Eu posso estar errado. Veja isso e verifique todos os comentários. Parece que as pessoas têm resultados mistos. Eu vi várias saídas trabalharem em muitos modelos Optiplex, então ainda será possível fazer isso se você tiver os drivers corretos:
Before Connecting Mutiple Monitors or a Monitor and a Television to Your Computer
To support dual monitors or a monitor and a television, you must have an optional graphics card. If you are connecting more than one monitor, ensure that the connectors on your monitors (whether VGA or DVI) match the available connectors on your computer, or that you have any necessary adapters. For example, if you have a VGA monitor that needs to be connected to a DVI port on your graphics card, you must have the optional DVI adapter.